Eaton Cutler-Hammer GD3100 100A 3P 480V Circuit Breaker, Bolt-On | AmpState

The Eaton Cutler-Hammer GD3100 100A 3P 480V Bolt-On Circuit Breaker is engineered to deliver dependable overcurrent protection in modern three‑phase electrical systems. Built to handle demanding industrial and commercial environments, this 3‑pole device protects panelboards, load centers, and comprehensive distribution networks from overloads and short circuits while maintaining reliable, consistent performance across retrofit projects.

Key features that set the GD3100 apart

• Bolt‑On mounting for straightforward retrofits and maintenance with minimal panel disruption.
• Three poles at 480V provide robust protection for standard 3‑phase distributions you’ll find in warehouses, manufacturing floors, and large facilities.
• 100 A rating delivers strong protection for circuits that demand solid fault isolation without sacrificing essential service continuity.
• Part-number continuity designed for retrofit work where the GD3100 family is the preferred, consistent choice—simplifying stocking and ordering over time.
• Trusted brand compatibility from Eaton Cutler-Hammer, a long‑standing name in industrial electrical protection and distribution hardware.

Why this breaker solves real problems

• When updating or expanding a distribution system, staying with the same part number minimizes compatibility risk and spare‑parts inventory concerns.
• Bolt‑on design speeds installation, reducing downtime during maintenance windows and service outages.
• Specifically rated for 480V three‑phase networks, ensuring appropriate trip characteristics and safe disconnects.
• Availability from AmpState means ready access to a dependable, widely supported breaker for ongoing maintenance programs.

Ideal use cases and scenarios

• Industrial facilities upgrading or expanding 3‑phase 480V distribution where a single, consistent part number is essential for planning and procurement.
• Maintenance planning that benefits from keeping the same breaker family across multiple panels, reducing the risk of mismatched replacements.
• Spare‑part stocking for field crews who rely on proven Eaton Cutler‑Hammer components with predictable replacement cycles.
• Retrofit projects in older installations where panel architecture supports bolt‑on breakers and requires minimal mechanical modification.

Comparison at a glance

• Bolt‑on GD3100 breakers offer quicker, cleaner installations compared with other mounting styles that may require more extensive panel modification.
• Designed to align with Eaton’s established protection strategy, ensuring consistent trip curves, coordination, and reliability across compatible panelboards and load centers.
• Specifically tailored for 3‑pole, 100A, 480V applications—avoiding over‑ or under‑protection and helping you meet electrical codes with confidence.

Product details: Eaton Cutler-Hammer GD3100, 100 A, 3 poles, 480V, Bolt-On. Part Number: GD3100. Product Type: Circuit Breaker. Manufacturer: Eaton Cutler-Hammer. Available from AmpState. If you need help confirming fit for your panel or want to verify compatibility with your existing lineup, AmpState team members are ready to assist and ensure you get the right part for your installation.